/// <summary>
/// Flushes a cached page and it's parent page's list of child pages whenever a page is updated
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="Rock.ModelUpdatedEventArgs"/> instance containing the event data.</param>
void Page_Updated(object sender, Rock.Data.ModelUpdatedEventArgs e)
{
// Get a reference to the updated page
Rock.CMS.Page page = e.Model as Rock.CMS.Page;
if (page != null)
{
// Check to see if the page being updated is cached
System.Runtime.Caching.ObjectCache cache = System.Runtime.Caching.MemoryCache.Default;
if (cache.Contains(Rock.Web.Cache.Page.CacheKey(page.Id)))
{
// Get the cached page
var cachedPage = Rock.Web.Cache.Page.Read(page.Id);
// if the parent page has changed, flush the old parent page's list of child pages
if (cachedPage.ParentPage != null && cachedPage.ParentPage.Id != page.ParentPageId)
{
cachedPage.ParentPage.FlushChildPages();
}
// Flush the updated page from cache
Rock.Web.Cache.Page.Flush(page.Id);
}
// Check to see if updated page has a parent
if (page.ParentPageId.HasValue)
{
// If the parent page is cached, flush it's list of child pages
if (cache.Contains(Rock.Web.Cache.Page.CacheKey(page.ParentPageId.Value)))
{
Rock.Web.Cache.Page.Read(page.ParentPageId.Value).FlushChildPages();
}
}
}
}
/// <summary>
/// Returns Page object from cache. If page does not already exist in cache, it
/// will be read and added to cache
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public static Page Read(int id)
{
string cacheKey = Page.CacheKey(id);
ObjectCache cache = MemoryCache.Default;
Page page = cache[cacheKey] as Page;
if (page != null)
{
return(page);
}
else
{
Rock.CMS.PageService pageService = new CMS.PageService();
Rock.CMS.Page pageModel = pageService.Get(id);
if (pageModel != null)
{
Rock.Attribute.Helper.LoadAttributes(pageModel);
page = Page.CopyModel(pageModel);
cache.Set(cacheKey, page, new CacheItemPolicy());
return(page);
}
else
{
return(null);
}
}
}
/// <summary>
/// Adds Page model to cache, and returns cached object
/// </summary>
/// <param name="pageModel"></param>
/// <returns></returns>
public static Page Read(Rock.CMS.Page pageModel)
{
Page page = Page.CopyModel(pageModel);
string cacheKey = Page.CacheKey(pageModel.Id);
ObjectCache cache = MemoryCache.Default;
cache.Set(cacheKey, page, new CacheItemPolicy());
return(page);
}
/// <summary>
/// Saves the attribute values for the page
/// </summary>
/// <param name="personId">The person id.</param>
public void SaveAttributeValues(int?personId)
{
Rock.CMS.PageService pageService = new CMS.PageService();
Rock.CMS.Page pageModel = pageService.Get(this.Id);
if (pageModel != null)
{
Rock.Attribute.Helper.LoadAttributes(pageModel);
foreach (var category in pageModel.Attributes)
{
foreach (var attribute in category.Value)
{
Rock.Attribute.Helper.SaveAttributeValues(pageModel, attribute, this.AttributeValues[attribute.Key].Value, personId);
}
}
}
}
// Copies the Model object to the Cached object
private static Page CopyModel(Rock.CMS.Page pageModel)
{
Page page = new Page();
page.Id = pageModel.Id;
page.ParentPageId = pageModel.ParentPageId;
page.SiteId = pageModel.SiteId;
page.Layout = pageModel.Layout;
page.Order = pageModel.Order;
page.OutputCacheDuration = pageModel.OutputCacheDuration;
page.Name = pageModel.Name;
page.Description = pageModel.Description;
page.IconUrl = pageModel.IconUrl;
page.AttributeValues = pageModel.AttributeValues;
page.IncludeAdminFooter = pageModel.IncludeAdminFooter;
page.Title = pageModel.Title;
page.DisplayInNavWhen = pageModel.DisplayInNavWhen;
page.MenuDisplayChildPages = pageModel.MenuDisplayChildPages;
page.MenuDisplayDescription = pageModel.MenuDisplayDescription;
page.MenuDisplayIcon = pageModel.MenuDisplayIcon;
page.EnableViewstate = pageModel.EnableViewState;
page.RequiresEncryption = pageModel.RequiresEncryption;
if (pageModel.Attributes != null)
{
foreach (var category in pageModel.Attributes)
{
foreach (var attribute in category.Value)
{
page.AttributeIds.Add(attribute.Id);
}
}
}
page.AuthEntity = pageModel.AuthEntity;
page.SupportedActions = pageModel.SupportedActions;
return(page);
}
/// <summary>
/// Flushes a cached page and it's parent page's list of child pages whenever a page is being deleted
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="Rock.ModelUpdatingEventArgs"/> instance containing the event data.</param>
void Page_Deleting(object sender, Rock.Data.ModelUpdatingEventArgs e)
{
// Get a reference to the deleted page
Rock.CMS.Page page = e.Model as Rock.CMS.Page;
if (page != null)
{
// Check to see if the page being updated is cached
System.Runtime.Caching.ObjectCache cache = System.Runtime.Caching.MemoryCache.Default;
if (cache.Contains(Rock.Web.Cache.Page.CacheKey(page.Id)))
{
// Get the cached page
var cachedPage = Rock.Web.Cache.Page.Read(page.Id);
// if the parent page is not null, flush parent page's list of child pages
if (cachedPage.ParentPage != null)
{
cachedPage.ParentPage.FlushChildPages();
}
// Flush the updated page from cache
Rock.Web.Cache.Page.Flush(page.Id);
}
}
}
